"Flathead Subbasin Plan"(PDF). Northwest Power and Conservation Council. p. 13. Archived from the original(PDF) on February 24, 2012. Retrieved August 30, 2009.
"Flathead Subbasin Plan"(PDF). Northwest Power and Conservation Council. p. 13. Archived from the original(PDF) on February 24, 2012. Retrieved August 30, 2009.